Answer:
4 times
Step-by-step explanation:
Answer:
Answer is D.
Step-by-step explanation:
do 4 times every value in the ( )
Answer:
3.)equal differences over equal intervals
Step-by-step explanation:
A linear function has a constant rate of change.
A rate of change is the difference in the dependent variable for every change in the independent variable.
This means it has equal differences over equal intervals.
Answer:
ppppppppppppppppppppppppppppppppppppppppppp
Step-by-step explanation:
i did this 4 points
Recall the sum identity for cosine:
cos(a + b) = cos(a) cos(b) - sin(a) sin(b)
so that
cos(a + b) = 12/13 cos(a) - 8/17 sin(b)
Since both a and b terminate in the first quadrant, we know that both cos(a) and sin(b) are positive. Then using the Pythagorean identity,
cos²(a) + sin²(a) = 1 ⇒ cos(a) = √(1 - sin²(a)) = 15/17
cos²(b) + sin²(b) = 1 ⇒ sin(b) = √(1 - cos²(b)) = 5/13
Then
cos(a + b) = 12/13 • 15/17 - 8/17 • 5/13 = 140/221
